[aws-garbage-collector] introduce new integration

[maorfr]

this integration does:

• delete aws resources which do NOT have one of the following:
  • the resource name starts with the name of an existing IAM user
  • the resource name starts with stage or prod
  • the resource has one of these tags:
    • managed_by_integration - ignores resources managed by terraform-resources and terraform-users
    • owner - ignores some resources managed by terraform (HK)
    • aws_gc_hands_off - ignores manually managed resources

this integration does not:

• support paging (planned for next iteration)

safety nets:

• to actually perform the deletion, the flag enable-deletion should be set to true

supported aws resources:

• s3
• sqs
• dynamodb
• rds

[jmelis]

The integration is great, and I don't see any major issues with the structure and workflow. I've given below some feedback, which summarizes in:

• you seem to be capturing a lot of generic exceptions, I wish we could make it more robust instead. If you can try to improve things like this it would be great:

except KeyError as e:
    if 'Tags' in e.message:

• there are some functions that can be refactored
• minor style things like using list comprehensions more often etc
• be more strict ith the exact naming patterns this integration will skip. doing if 'stag' in name seems a bit too generic, maybe? it's a hard problem to solve, though...

[jmelis]

Awesome!!! 🚀